ANRO Institutional Ownership
Who owns Alto Neuroscience, Inc. and what the big funds did with it last quarter, from every SEC 13F filing. 114 funds reported holding ANRO at Jun 30, 2026, together owning 75.1% of the company.
- ▲66 buying vs 48 selling
- ▲Held by funds +6.7 pts
- ▲Funds holding +4
- ▼Superinvestors: 0 added, 2 cut
- ●Put/call not meaningful
What the filings show, not a forecast. Positions can be up to 45 days old and leave out short sales.
Funds holding and ownership
8 quartersQuarter over quarter
all 13F filers| Q2 2026 | This quarter | Q1 2026 | Change |
|---|---|---|---|
| Funds holding | 114 | 110 | +3.6% |
| In funds' top 10 | 4 | 3 | +33.3% |
| 13F shares | 29.5M | 26.8M | +9.8% |
| Held by funds | 75.1% | 68.4% | +6.7 pts |
| New positions | 27 | 22 | +22.7% |
| Increased | 39 | 27 | +44.4% |
| Reduced | 26 | 43 | −39.5% |
| Sold out | 22 | 10 | +120.0% |
| Calls (shares) | 0 | 0 | – |
| Puts (shares) | 0 | 0 | – |
| Put/call ratio | – | – | – |
Buyers vs sellers
adding or new vs cutting or sold outSuperinvestors in ANRO
All superinvestors →
Who owns ANRO
share of fund held shares- Index and passive funds20.6%
- Active managers and hedge funds76.1%
- Banks and brokers3.0%
- Pensions, insurers and other0.3%
The top 10 holders own 59.7% of all ANRO shares that funds reported. Groups are our own grouping of filers by name.
Filed so far for Q3 2026
18 funds changed their position- Profund Advisors LLCAdded+30K sh
- Creative PlanningNew+20K sh
- Alps Advisors IncAdded+16K sh
- State of WyomingTrimmed−6,367 sh
- Farther Finance Advisors, LLCAdded+5,344 sh
🔒 Free account: see all 18.
Top holders
Q2 2026| # | Fund | Of company | Shares | Value | Change |
|---|---|---|---|---|---|
| 1 | Alpha Wave Global, LP | 9.45% | 3.7M | $97.8M | 0 |
| 2 | Commodore Capital LP | 6.94% | 2.7M | $71.9M | 0 |
| 3 | BlackRock, Inc. | 5.40% | 2.1M | $56M | +1.5M |
| 4 | Perceptive Advisors LLC | 4.10% | 1.6M | $42.5M | −400K |
| 5 | Adage Capital Partners Gp, L.l.c. | 4.08% | 1.6M | $42.2M | +1.2M |
| 6 | Vanguard Capital Management LLC | 3.54% | 1.4M | $36.7M | +182K |
| 7 | Spruce Street Capital LP | 3.45% | 1.4M | $35.7M | +28K |
| 8 | Vivo Capital, LLC | 3.08% | 1.2M | $31.9M | +173K |
| 9 | Franklin Resources Inc | 2.58% | 1M | $26.7M | −89K |
| 10 | Armistice Capital, LLC | 2.20% | 864K | $22.8M | −48K |
- BlackRock, Inc.+1.5M sh+$38.4M
- Adage Capital Partners Gp, L.l.c.+1.2M sh+$32.1M
- State Street Corp+486K sh+$12.8M
- Parkman Healthcare Partners LLC+429K sh+$11.3M
- Geode Capital Management, LLC+385K sh+$10.2M
- Affinity Asset Advisors, LLC+350K sh+$9.2M
- Schonfeld Strategic Advisors LLC+258K sh+$6.8M
- Vanguard Capital Management LLC+182K sh+$4.8M
- Vestal Point Capital, LP−1.3M sh−$33.8M
- Perceptive Advisors LLC−400K sh−$10.6M
- Jennison Associates LLC−386K sh−$8.7M
- Millennium Management LLC−264K sh−$7M
- Susquehanna International Group, LLP−231K sh−$6.1M
- Qube Research & Technologies Ltd−209K sh−$4.7M
- Alkeon Capital Management LLC−125K sh−$3.3M
- Ikarian Capital, LLC−108K sh−$2.8M
ANRO institutional ownership FAQ
Who owns the most ANRO stock?
In Q2 2026 13F filings the largest holder of ANRO was Alpha Wave Global, LP, followed by Commodore Capital LP and BlackRock, Inc.. Index fund managers are usually the biggest holders of large companies.
What percentage of ANRO is owned by institutions?
Funds that file 13F reports held 75.1% of ANRO's shares at Jun 30, 2026, compared with 68.4% a quarter earlier. That counts every manager with more than $100 million in US stocks.
Are hedge funds buying ANRO?
In Q2 2026, 66 funds bought ANRO (27 of them new positions) and 48 sold (22 sold out completely). Among well known investors, 0 added and 2 cut. Our fund sentiment for ANRO is bullish.
What is ANRO's institutional put/call ratio?
Too few option positions were reported for a meaningful ratio.
How current is this ANRO ownership data?
13F filings show holdings at the end of each quarter and are due within 45 days, so positions can be up to six weeks old when they appear. We add each new filing within minutes, and the "filed so far" list shows funds that have already reported the next quarter.
For informational and educational purposes only. Not investment advice, and not a recommendation to buy or sell any security. Fund sentiment summarises what 13F filings show and is not a forecast. Holdings come from SEC Form 13F filings as reported and show positions at the end of the quarter, up to 45 days before the filing. A 13F leaves out short positions, cash, bonds and most foreign holdings. See all hedge fund holdings.